#include <bits/stdc++.h>
#include <atcoder/all>
using namespace std;
using namespace atcoder;
using ll = long long;

int main() {
  int N; cin >> N;
  vector<pair<int, int>> xy(N);
  for (int i = 0; i < N; i++) cin >> xy[i].first >> xy[i].second;
  ll ans = 1e18;
  for (int x = 1; x <= 300; x++) {
    for (int y = 1; y <= 300; y++) {
      ll S = 0;
      for (int i = 0; i < N; i++) {
        S += abs(x - xy[i].first) + abs(y - xy[i].second);
      }
      ans = min(ans, S);
    }
  }
  cout << ans << endl;
  return 0;
}